催化学报 ›› 2009, Vol. 30 ›› Issue (5): 378-380.

• 研究快讯 • 上一篇    下一篇

Ga2O3对Pt/WO3/ZrO2催化剂上正庚烷异构化反应的促进作用

涂兴珺, 乐英红, 王 捷, 翟德伟, 华伟明, 高 滋   

  1. 复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433
  • 收稿日期:2009-05-25 出版日期:2009-05-25 发布日期:2013-02-05

The Promoting Effect of Ga2O3 on a Pt/WO3/ZrO2 Catalyst for n-Heptane Isomerization

TU Xingjun, YUE Yinghong, WANG Jie, ZHAI Dewei, HUA Weiming*, GAO Zi   

  1. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan Uuniversity, Shanghai 200433, China
  • Received:2009-05-25 Online:2009-05-25 Published:2013-02-05

摘要: 考察了 Ga2O3 掺杂的 Pt/WO3/ZrO2 (Pt/WGZ) 催化剂在 200 oC 时正庚烷临氢异构化反应性能. 结果表明, 少量 Ga2O3 的加入能显著提高 Pt/WGZ 的催化活性, 异构化选择性也有所增加, 这是由于 B 酸位增加和 B 酸/L 酸比的改变而引起的. Pt/WGZ 催化剂连续反应 80 h, 正庚烷转化率和异构化选择性分别稳定在 76% 和 94%.

关键词: 铂, 氧化钨, 氧化锆, 氧化镓, 正庚烷临氢异构化, 酸性

Abstract: The incorporation of small amounts of Ga2O3 into Pt/WO3/ZrO2 increases the activity substantially and improves the isomerization selectivity to some extent for n-heptane hydroisomerization. Pt/WO3/Ga2O3-ZrO2 gave a constant catalytic activity at 200 oC for over 80 h with a high n-C7 conversion (76%) and C7 isomer selectivity (94%).

Key words: platinum, tungsten oxide, zirconia, gallium oxide, n-heptane hydroisomerization, acidity